Inking attachment



Oct. 16, 1928. 8 1,688,281

w. MACDONALD INKING ATTACHMENT Filed Sept. 25, 1927 I 4 I v 5 x01 Q 5. Fig.6.

IMVENTOR,

I 5 ATTORNEDY.

Patented Oct. 16, 1928. i

" UNITED STATES;-

WILLIAM MACDONALD, on nnimrson, OHIO.

INKING ATTACHMENT.

Application filed Septemb er 23, 1927. Serial No. 221,569.

V This invention'relates to an inking attachment for impression elements, suchas electrotypes, zinc etchings, half tones, engraved plates, cuts, etc, and has for its ob ject to provide, in a manner as hereinafter set forth, an attachment of the class referred to connected' to the impression element and operated by the platen or impression cylinder of a printing press for supplying ink to the element for printing therefrom. 7

Further objects of the invention are to provide, in a manner as hereinafter set forth, an attachment for the purpose referred to for connection directly to the impression element and'adapted when operated to supply ink upon the facexof the element for printing directly therefrom and which is simple in its construction and; arrange ment, strong, durable, compact, automatic in its action, thoroughly eflicient in its use, readily installed with respect to theimpression element, and comparatively inexpensive to manufacture. 'With the foregoing andotheryobjects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specificallyde scribed, and illustrated inthe accompany ing' drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within "the scope of the claims hereunto appended. In the drawings wherein like reference characters denote corresponding parts throughout the several views; Figure 1 is a top plan'view of animpression element provided with an inkingfat tachment therefor in accordance with this invention. a c

Figure 2 an inverted plan view of an inking attachment in accordance with this invention and with the latter'gc'onnected to the impression element. i Figure 8 is a section on line 3+3 Figure 2. Figure 1-. isa section on line Figure2. Figure 5 is an elevation ofthe actuator for the attachment; J a

Figure dis a perspective view of the contracting shaft for the flexible receptacle forming the ink reservoir. 7

The attachment comprises a base 1 formed with an opening 2' and a recess 3 provided in one ofthe walls of the opening 2. Thebase forms a carrier or support for the impression element 4 which extends over the top or front end of the opening 2. The element/l: 1s of greatcrarea than the length and width of the opening 2 and also extends over the recess 3 andfsaid element 1 is fixedly secured to the base 1 by holdfast devices 5. Preferably the base 1 is of rectangular contour andformedfof a wooden block of substantial thickness, width andlength. Theimpression element 4 can be an electrotype, zinc etching,;half tone, engraved plate, or .cut for newspaper work. The printing is done directly from the impression element as originallymade. The element 1 before it is securedto the'tbasefll, is formed with ports or openings 6 for: the passage of ink there through to the upper, face of said element, and theilatt'er is also formed with acounter sunk'opening7 having a threaded wall to receive a closure plug 8 ,Y in theforni of a said element. See Fig'ure," Theopening eter than'the opening? and through which 75 headed screw and which is countersunk in operates a springcontrolled actuating ele ment to "be hereinafter referred to. The lower face of'theelemente has secured therewitha bezel ringflO of substantial diameter and the opening 6 formed in said elemente are arranged within the. ring 10. 1

Se'cured o that "wall of the iopening,

which is provided with thelrecessg3fby the, h0ldfast*devices 11, is a' semi-Icircularplate 12 which extends across the recess 3 and 1 abuts against the lowerfaceof the elenient 4. The plate'12 is "formed with a semi-circular" flange 13 projecting in: a direction awaygfrom the recessed wall of the opening 2. The plate12, at the" vertical median thereof, is provided witha slot 14sarranged at the upper portion thefiange 13;

i The actuating element, of the attachment,

of said jplate'and'below is referred to generally by the reference 1 character 15, and is in'the form ofa cylindrical plunger 16 having a reduced j lower portion 17. "Formed integral with or secured to the lower portion ofthe plunger 16 1s a lateral arm18 which projects through the slot 14 and terminates in adepending loop 19 formed With ajdepending inclined nose 20 at the lower endof one side thereof. That side joii the loop 19- fornied with the nose 20'is provided With an "opening 21. The opening 9 communicates with there'c'ess 3 and the element peratesthrough the opening 9 and into the recess 3 and the loop 19 is positionedin the opening 2 ihe'l'o iv the flange 13 of the plate 12. Clhenctuating element 15 is slidabiy' connecmdt'O'Fthe plate 12 by a coupling means 22 which extends throng-h lo'op and"; opening 23 formed fin'the plate .12 and l'sa d coupl ng ineins consists ofsjfhende'd holtnndln nnt against "the loop '19 and "with the"l1zitter inter so nose vherebyfwvhenf the actuating element posetrbiween the head 0-1 the ibe-1t and the; plate 12." The aetugitingelenient115' is spring cont-rolled and forsueh purpose a curved leaf spring'fl l is employed and one fend] of the spring fig fixecu se m-ed, as {git 25; to the plate 1.2 in p'ip iiinity .to .the 'fienge 13 and the 'o'ther sneer the s13'1ing 24t' extends into "the ope ing 21. i y J'ournzille'd thef' pjlz' te '12 is an intermit tently rotatable shaft 26 j which p'rovides fin'eans for contaeting a flexible receptacle .to i be presently glreferred 'to. The reeeptacle provides an; in k reservoir; The, shaft 26 bail s a t ratchetjpinion 27 ,v-in the pith of the l 'fis" depressedfthe shaft will jbe shifted. .ITo 1ev'entbae1 mrd movement of the shaft controlling tt'orinedjivith any extension 7,

26,: spring eontrolljedjpeivl. 218 is :pr0vided y hich engages yvith the 1pinionI27. The pawl 28 is pi votedfto the, {plate l2 end its illd'icntedfi ati29, f-Thie cts 2i substantial dist ance from is formed ,vvith an [opening 29 'for sf ti rigitheiewithafwindahle,,flexible pullin'g'lnien er," in? tlie flfo ot aseor d efor t'lie p'r'irpose of contracting the, flexible shaft; 216 f torthe i'iii :10; jnndfdepending therefrom, is 5 11-, QpGIiLtOp flexible {receptacle D2,

i a I th ink theref m r thr ugh, the i pe ings 6 livherehy the necessal ynmount ofdn'kwi-ll be supplied te -the {ripper face of; the 2 impresvsion ele-inent ;so that a; print wc-ainf be i made therefrom. The; member :3;1,-facts to twist or eontriwt {He -receptacle 32 whereby "it -wvill ect to f oree the; ink? throughthe openings :6. t -l9ase 15 has w secured fto the g'hottoni thereofa plate 36 for the purpose of closing the bottom of the opening 2; The plate 86 secured inposition bythe holdis removahly' iast devices 37.

The feeding or supplying of ink to the 2 upper face of the impression element 13 had -;2mton1eticztlly Sandi-he "receptacle 32 is minnteined in twisted or contracted position While the eet-uetin'g element 1s m a lowered posltion and after the mpress on cylinder or platen 'pzisses clear of the element 15' the spring-2&Wi1l act to project said 216111811 0115 a substantial distance above the impression element so that the-latter can bew engztged by the piston :or impression cylinder; f the tiny suitable manner and ofia ny size; 7 T he ink in my be, of any color desired to produce any color effect inking attachment, in accordance with this invention, for an impression elementfor p'rintingpurposes,can he readily understood, andnlthongh the preferred embodiment of the invention isusillus'trated and described, yet. it lisflto be understood that changes in thedetaiilsof construction can. he'had which press; 8 The openingsffi can be arranged in ltqis thought the many ztdvantageslof Wil iam Within the scop'enf the invention 7 as claimed, y r

V lVhet .I clannis:

r "1. An: inking ettac'hnient -for fan iinpressionelement of that-typelprovided with openings for the {pessngeof ink toits upper faceyan open top flexible receptncleadapted .to he securedto the lowerrnfeceiof said 'eleinent and communicating 'with' the open- 2 ings the elenient and providing -81min];

reservoir, means connected'With'said ree'ep .tacle for contracting (1t 7 to iorce a supply-oi v .inkthrough-saidopenings zto theupper face of; the element and an actuating element ifm zextension throughthe impression ele-e .ment :and shifted in one direction by a part of -pr1nt1i 1g;press to provide for the opera-r tion, ot snidflneanstocontract the receptacle.

e j 2.. Aninking'attachment' for :LILiIIlPIiGF- sion element oigz that @type vprovided nvith vopeninfgs for the-passage of ink toitsupjper .t-ace, n11 013G112 topf-fiexible receptacle adapted :tdfbe? secured to the; lower *face of said element and communicating with the openings .in' the' elementrandproviding an ink reserweir, means gconnected with, sziid receptacle zforcontreeting it to {force/2i supply otink through said-openings-to :the upper face lot :the element, Zand ran actuating element dior'reXtens-ion 'rtlii'ough the impression ele- 'mentxzrnd shifted iirone direction by a part,

of a printing press to provideifor the opera ti on ofsaids-lneans' to contract the receptacle,

s-said nieans: connected to the bottom Ofsaid receptacle and said actual-ting. element ihein-g sbring controlled.

; 1 3. iInco1nbin2ttion, enimpressionelement stormedwith fink-supply ports, I ec-eontractible receptacle secured to the lower, face of said element and providing an ink reservoir communicating with said ports, and means connected to said receptacle and extending through said element and operated from a part of a printing press for contracting the receptacle to force a supply of ink therefrom through said ports to the upper face of the element.

4. In combination, an impression element formed With ink supply ports, a contractible receptacle secured to the lower face of said element and providing an ink reservoir communicating Withsaid ports, and means connected vto said receptacle and extending through said element and operated from a part of a printing press for contracting the receptacle to force a supply of ink therefrom through said ports to the upper face of the element, said means including a spring con- 1 trolledplunger and a shaft operated therefrom.

5. In combination, an impression element formed With ink supply'ports, a contractt ble receptacle secured to the lower face of said element and providing an ink reservoir communicating with said ports, and means connected to said receptacle and extending through saldeleinent and operated from a part ot a printing press for contracting the ture hereto.

VII/LIAM MACDONALD. 

